30500302672 has 80 divisors (see below), whose sum is σ = 71159810560. Its totient is φ = 12371584896.

The previous prime is 30500302663. The next prime is 30500302753. The reversal of 30500302672 is 27620300503.

It is a super-2 number, since 2×30500302672² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 30500302672.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2383363 + ... + 2396125.

It is an arithmetic number, because the mean of its divisors is an integer number (889497632).

Almost surely, 2^30500302672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30500302672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35579905280).

30500302672 is an abundant number, since it is smaller than the sum of its proper divisors (40659507888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30500302672 is a wasteful number, since it uses less digits than its factorization.

30500302672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13920 (or 13914 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 28.

The spelling of 30500302672 in words is "thirty billion, five hundred million, three hundred two thousand, six hundred seventy-two".